diff --git a/RFXtoRP_HsrPrepa_HandlingunitGoodsPrepared.ftl b/RFXtoRP_HsrPrepa_HandlingunitGoodsPrepared.ftl
index 324c50d..8cb15ab 100644
--- a/RFXtoRP_HsrPrepa_HandlingunitGoodsPrepared.ftl
+++ b/RFXtoRP_HsrPrepa_HandlingunitGoodsPrepared.ftl
@@ -13,7 +13,7 @@
     "ID": {
        "RefDate": {
       "AuthorTimeZone": "${time_zone_rfx}",
-      "DateTime": "${preparation_line.confirmation_datetime}"
+      "DateTime": "${packing_datetime}"
     },
       <#if despatched_ipg.carton_number != "000000000000000000">
         "RefID": "${despatched_ipg.carton_number}"